US3356375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized oil rings
Assignee: Individual
•
Filing: 1964-12-04
•
Granted: 1967-12-05
•
Expires: 1984-12-04
Abstract
No abstract record available.
Inventors
- 👤 Paul E Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:49
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/06; F16J9/064; F16J9/066; F16J9/067; F16J9/12; F16J9/14; F16J9/145; Y; Y10; Y10S; Y10S277/00; Y10S277/922; Y10S277/931; Y10S277/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A MULTI-COMPONENT OIL RING ASSEMBLY ADAPTED FOR INSERTION IN A PISTON GROOVE COMPRISING IN COMBINATION A PAIR OF CIRCUMFERENTIALLY EXTENDING AXIALLY SPACED RAIL MEANS, A CIRCUMFERENTIALLY EXTENDING AND CIRCUMFERENTIALLY RESILIENTLY PRECOMPRESSED SPACER-EXPANDER MEANS ENGAGING AND URGING SAID RAIL MEANS RADIALLY OUTWARDLY AND HAVING AT LEAST A PORTION THEREOF DISPOSED INTERMEDIATE TO AND AXIALLY SPACING SAID RAIL MEANS, AND A RESIONOUS ADHESIVE MEANS ACTING IN SHEAR TO BOND SAID PRECOMPRESSED SPACER-EXPANDER MEANS TO SAID RAIL MEANS, SAID ADHESIVE MEANS HAVING A SHEAR STRENGTH WHICH IS SUFFICIENTLY HIGH TO BOND SAID SPACER-EXPANDER MEANS TO SAID RAIL MEANS AT ROOM TEMPERATURES AND MAINTAIN THE COMPRESSION THEREOF AND WHICH SHEAR STRENGTH AT APPROXIMATELY 180* F. IS IN SUFFICIENT TO MAINTAIN THE COMPRESSION OF SAID SPACER-EXPANDER MEANS WHEREBY SAID ADHESIVE MEANS RELEASES SAID SPACER-EXPANDER MEANS FROM SAID RAIL MEANS WHEN EXPOSED TO INTERNAL COMBUSTION ENGINE OPERATION CONDITIONS.
Claim 2
Dependent Claim
142 words
A MULTI-COMPONENT OIL RING ASSEMBLY ADAPTED FOR INSERTION IN A PISTON GROOVE COMPRISING IN COMBINATION A PAIR OF CIRCUMFERENTIALLY EXTENDING AXIALLY SPACED RAIL MEANS, A CIRCUMFERENTIALLY EXTENDING AND CIRCUMFERENTIALLY RESILIENTLY PRECOMPRESSED SPACER-EXPANDER MEANS ENGAGING AND URGING SAID RAIL MEANS RADIALLY OUTWARDLY AND HAVING AT LEAST A PORTION THEREOF DISPOSED INTERMEDIATE TO AND AXIALLY SPACING SAID RAIL MEANS, AND A RESIONOUS ADHESIVE MEANS ACTING IN SHEAR TO BOND SAID PRECOMPRESSED SPACER-EXPANDER MEANS TO SAID RAIL MEANS, SAID ADHESIVE MEANS HAVING A SHEAR STRENGTH WHICH IS SUFFICIENTLY HIGH TO BOND SAID SPACER-EXPANDER MEANS TO SAID RAIL MEANS AT ROOM TEMPERATURES AND MAINTAIN THE COMPRESSION THEREOF AND WHICH SHEAR STRENGTH AT APPROXIMATELY 180* F. IS IN SUFFICIENT TO MAINTAIN THE COMPRESSION OF SAID SPACER-EXPANDER MEANS WHEREBY SAID ADHESIVE MEANS RELEASES SAID SPACER-EXPANDER MEANS FROM SAID RAIL MEANS WHEN EXPOSED TO INTERNAL COMBUSTION ENGINE OPERATION CONDITIONS.
References Cited (Backward Citations)
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US2781899A
Cited
US2854301A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |